Home / 36,830.79-55,231.52-15,780.87

Finding the Fourth Proportional to 36,830.79, 55,231.52 and 15,780.87

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Solution

The fourth proportional to 36,830.79, 55,231.52 and 15,780.87 is: 23,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,830.79 : 55,231.52 = 15,780.87 : x
  2. Step 2: Convert to fraction form
    36,830.79/55,231.52 = 15,780.87/x
  3. Step 3: Cross multiply
    36,830.79x = 55,231.52 × 15,780.87
  4. Step 4: Simplify right side
    36,830.79x = 871,601,358.12
  5. Step 5: Solve for x
    x = 871,601,358.12/36,830.79
  6. Step 6: Final answer
    x = 23,665.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.